When we come to that language we understand that it was much more natural than the languages we know today, which are most complicated. Take for instance the language of birds and animals. These languages are not made from grammar, they are not mechanical; they are natural expressions of their real sentiments, of their real needs. It is by that natural expression that other animals of the same kind understand the warning they give to move, the warning they give to protect themselves, to leave their places; the warning of death or danger, or of a change of climate, of storm or rain coming. They have a certain way of expressing affection, passion, wrath, anger, and yet it is not a mechanical language, it is a natural expression, a natural language.